Which of the following is the expected data rate on a 10BASE-T
network?

100Mbps

10Mbps

500Mbps

1000Mbps

The segment length from hub port to workstation NIC on a 10BASE-T network
should be no longer than ______.

100 meters

185 meters

200 meters

10 meters

A network operating at 10Mbps uses coaxial cable with segment lengths
from node to hub of 185 meters. This type of network is _____.

10BASE5

10BASE2

10BASE-T

100BASE-T

In a 100BASE-T network, the distance of cable from hub to workstation
should not exceed ______.

25 meters

50 meters

100 meters

200 meters

What is the maximum cable segment length for 10BASE2?

200 meters

100 meters

185 meters

1,024 meters

You have a workstation that is 153 meters from the server, there is no
repeater and it uses 10BASE-T wiring. You cannot connect to the
network.

Required Objective: Connect to the server.

Optional Objectives: Faster connection, easier access for users.

Proposed Solution: Replace the old NIC with a 100BASEFX NIC.

This meets only the required objective.

This meets the optional objectives.

This meets the required and one of the optional objectives.

This does not meet the required or optional objectives.

IEEE 802.5 refers to _____.

Token Bus

Token ring

Ethernet

MAN

Which of the following networking standards specifies a maximum segment
length of 100 meters?

10BASE-T

10BASE5

10BASEYX

10BASE2

Which of the following technologies uses Category 5 cable?

100BASE-TX

Fiber-optic

10BASE5

10BASE2

What kind of connector would you use to make a patch cable for a 10BASE-T
network?

RJ-11

RJ-45

RJ-T

BNC

What is the maximum frequency limit of thicknet coaxial cable?

1 MHz

100 MHz

10 MHz

200 MHz

If you increase the resistance on a wire, what happens to the signal
energy loss?

There is no change.

The signal energy loss decreases.

The signal energy loss increases.

The signal energy change fluctuates wildly between very high increases and very high decreases.

What is the proper termination for unshielded twisted-pair network
cable?

150 ohms

50 ohms

93 ohms

100 ohms

What kind of insulator do coaxial cables use to separate the center wire
from the braided conductor?

Glass

Polyurethane

Copper

Wool

What cause intersymbol interference?

Ohms

Crosstalk

Adaptive equalizers

Reactive components of cables

What does an adaptive equalizer do?

It increases intersymbol interference.

It samples and evaluates data for intersymbol interference.

It promotes crosstalk in wires.

It prevents crosstalk in wires.

How does an equalizer lower ISI?

It increases the twists in the copper cabling.

It increases crosstalk.

It incorporates phase shifts to counter the effects of the channel.

An equalizer normally increases ISI.

Which of the following types of noise results from sunspot
activity?

Impulse noise

Atmospheric noise

Frequency noise

Crosstalk

What cable type is used with the IEEE 100BASE-FX standard?

Coaxial

Fiber optic

STP

UTP

Which of the following types of noise is caused by engine ignition
systems?

Sunspots

Crosstalk

Impulse noise

Twists in the cabling

Which of the following types of noise originates from carrier
frequencies?

Atmospheric noise

Impulse noise

Crosstalk

Frequency noise

Crosstalk occurs when you lay unshielded cables _____.

in parallel

in perpendicular

in right angles

end-to-end

In early days, you could hear another conversation while talking on the
telephone. What caused this problem?

Attenuation

Signal loss

Crosstalk

Parity

Distortion is expressed using what kind of measurement?

Watts

Decibels

Amps

Meters

If the power of the noise is 5 mW, and the power of the desired signal is
50 mW, what is the SNR, in decibels?

18 dB

10 dB

5 dB

1 dB

What is an acceptable SNR for digital communications?

60 dB

50 dB

40 dB

70 dB

What is the maximum segment length of a 100BASE-FX Ethernet connection?

100m

265m

412m

1000m

What is the standard speed for an IEEE 100BASE-TX network?

100Mbps

200Mbps

10Mbps

100bps

Thinnet is also referred to as ______.

10BASE-T

10BASE5

Cheapernet

Thin UTP

What is the topic of the IEEE 802.10 standard?

LAN security

Broadband technology

Wireless LANs

100VG-AnyLAN

Which IEEE standard describes 100VG-AnyLAN?

IEEE 802.3

IEEE 802.12

IEEE 802.10

IEEE 802.2

Which of the IEEE 802 standards describes Ethernet?

IEEE 802.2

IEEE 802.12

IEEE 802.3

IEEE 802.5

A client in a 10BASE-T LAN using category 5 UTP is unable to access the
server. The hub is located 80 meters from a patch panel. The distance from the
patch panel to wall outlet is 15 meters. The patch cable from wall outlet to
client is 10 meters. Which of the following statements best describes the
proposed solution?

Required Results: To provide access to the server from the client
workstation.

Optional Desired Results: To improve data rates on the LAN and to reduce
the amount of logged downtime.

Proposed Solution: Reduce the length of the patch cable from wall outlet
to client workstation to 5 meters.

The proposed solution produces the required result and one of the optional desired results.

The proposed solution produces the required result and both of the optional desired results.

The proposed solution produces the required result but neither of the optional desired results.

The proposed solution does not produce the required result but produces both of the optional desired results.

What is the maximum segment length of 10BASE-T STP cable?

50 meters

100 meters

75 meters

200 meters

What is the maximum data rate of a 10BASE-T network?

100Mbps

500Mbps

10Mbps

1000Mbps

In a 100BASE-T4 network, the distance of cable from hub to workstation
should not exceed _____.

200 meters

50 meters

25 meters

100 meters

Which of the following cable types is recommended for 100BASE-TX
networks?

You are making some category 5 twisted-pair cables and have run out of
connectors. What type of connector should you order from your supplier?

RJ-45

RJ-11

BNC

ST

You are configuring a router. According to the manual, you will need a
transceiver to connect to the LAN ports of the router. What kind of physical
interface does the router have?

MSAU

AUI

RJ-11

BNC

In a hardware loopback plug, which two wire numbers are
connected?

3 and 4

1 and 3

1 and 2

2 and 6

3 and 5

Which layer of the OSI model is responsible for encryption and
decryption?

Session

Network

Presentation

Physical

What type of NIC card connector should be used for coaxial cabling
infrastructure?

BNC

RJ-11

RJ-45

RS-232

Which of the following connector types may be used with SCSI
devices?

DB-15

68-Pin High Density

50-Pin Centronics

DB-25

Which one of the following connectors may be used on a SCSI
cable?

Fiber optic

DB-9

AUI

Centronics 50

Which of the following uses an RJ-45 connector?

Coaxial cable

UTP cable

Fiber optic cable

Thinnet cable

A client computer uses RG-58 cable to connect to a bus network. Which of
the following is most likely to be found on the client NIC?

RJ-45

RJ-11

BNC

ST

Objective 1.5: Choose the Appropriate Media Type and Connectors to Add a
Client to an Existing Network

Which communication method allows communication to occur in both
directions at the same time on a single cable?

Multiplex

Simplex

Duplex

Full duplex

What is the advantage of fiber-optic cable over copper-based
media?

It's immune to EMI interference.

It interfaces easily to other media types.

It's cheaper.

It uses conventional radio waves for a carrier.

Select the best networking media for a new installation in which 10
clients are connected to a hub in a 100BASE-T network.

Category 3 UTP

RG-58

Fiber optic

Category 5 UTP

While troubleshooting a network connectivity problem, you notice that the
network card in your system is operating at 10Mbps in half-duplex mode. At what
speed is the network link operating?

10Mbps

5Mbps

2.5Mbps

20Mbps

You are tasked with specifying a way to connect two buildings across a
parking lot. The distance between the two buildings is 78 meters. An underground
wiring duct exists between the two buildings, although there are concerns about
using it because it also houses high-voltage electrical cables. The budget for
the project is very tight, but your manager wants you to specify the most
suitable solution. Which of the following cable types would you
recommend?

UTP

Fiber-optic

Thin coax

STP

Which two of the following connectors would you use when working with
fiber-optic cable?

ST

RJ-45

SC

RJ-11

Which of the following may be a disadvantage of using shielded
twisted-pair cabling?

It requires an AUI connector on each end.

It can only be used in token ring networks.

It must be properly grounded.

Data rates are limited to 4Mbps.

Which of the following is an advantage of fiber-optic cable?

It's comparatively easy to install.

It's immune to EMI interference.

It's comparatively inexpensive.

It requires little specialized training to install.

Which of the following IEEE standards specifies fiber-optic
technology?

IEEE 802.12

IEEE 802.8

IEEE 802.3

IEEE 802.5

What kind of cable is totally immune from EMI interference?

Fiber-optic cable

Category 3

Category 5

Coaxial Cable

What is not usually a factor that can be attributed to losses in fiber
optic cable?

Improper splices

Misaligned connectors

Too many twists

Severe bends

Why is a bent cable in fiber optics undesirable in terms of signal
loss?

It does not matter.

Bent cable reacts with the twists to create more crosstalk.

The cable is susceptible to atmospheric noise when it is bent.

The energy will refract into the cladding and be lost.

An amplifier has an input power of 20 mW (milliwatts) and a power output
of 200 mW. What is the gain in decibels?

10 dB

5 dB

2 dB

1 dB

What does a negative dB mean when evaluating the performance of a
line?

Your server needs to be replaced.

Gain of signal strength.

Nothing.

Loss of signal strength.

A particular advantage of category 5 UTP is that it eliminates
_______.

What type of connection is required at a hub port that's marked
MDI-X?

Straight-through pinning at the port connector is required.

Use an AUI cable at the port.

A crossover cable is required at the port.

A BNC connector must be used.

In addition to workstations, a 10BASE-T hub has a router connected to it.
Which of the following is a good indicator that the router is connected to the
hub?

The 10BASE-T link light on the router

The self-test lights on the hub

The power-on light on the router

NIC link lights

A bridge is used to ______.

replace multiple repeaters

interconnect only networks of the same access protocol

reroute data around LANs

interconnect networks of different access protocols

Consider the following description of a network and choose the best
connection component for it from those listed. An Ethernet LAN consists of 10
clients, a standalone server, and two printers. The media used is category 5
UTP.

Gateway

MAU

Hub

Transceiver

A large LAN has been segmented into two separate LANs. Which network
element is the best choice for connecting the two LANs?

A gateway

A hub

A router

A NIC

A hub port is marked MDI-X. What does this mean?

The port is unavailable.

A crossover cable is required at the port.

A coaxial cable is required at the port.

A separate transceiver is required at the port.

You want to connect two networks that are using different protocols. What
type of device should you use?

Bridge

Router

Repeater

Gateway

What UART chip is needed to provide a modem connection of 115200
bps?

165.xx

82.xx

166.xx

169.xx

By using network monitoring tools, you determine that your 10BASE2
network is suffering performance degradation from too many collisions. Which of
the following devices could you use to divide the network and therefore reduce
the number of collisions?

Source-route bridge

Transparent bridge

MSAU

Ethernet switch

For many years, the design department and the marketing department have
operated separate networks. The design department uses AppleTalk and the
marketing department uses token ring. Now, the two departments have decided that
they want to be able to access files from each other's servers. What
network device or service would you implement to facilitate this?

Router

Source-route bridge

Gateway

Transparent bridge

You are the network administrator for a token ring network. A NIC in a
system fails, and you replace it with a new one. However, the system is unable
to connect to the network. What is the most likely cause of the
problem?

The card is a 100Mbps card, and the ring is configured for only 10Mbps.

The card is set to the wrong ring speed.

The card is set to full-duplex, and the ring is running at only half-duplex.

The card is faulty.

While troubleshooting a network connectivity problem, you notice that the
network card in your system is operating at 10Mbps in half-duplex mode. At what
speed is the network link operating?

2.5Mbps

5Mbps

10Mbps

20Mbps

A server has two modems installed. The first is configured for COM 2, IRQ
11, and I/O of 03E8-03EF. The second is configured for COM 3, IRQ 15, and I/O of
03E8-03EF. What action should be taken in regard to the configuration
settings?

Change the IRQ of the first modem.

Change the IRQ of the second modem.

No action is required.

Change the I/O of the first modem.

Which device is used to convert from one protocol to another?

A hub

A gateway

A router

A switch

The hub used in a token ring network is called a(n) ______.

AUI

MAU

Concentrator

Transceiver

A ______ is used to provide a centralized connection point for network
access.

modem

RJ-45

hub

NIC

Two stackable hubs are connected with category 5 UTP that uses
straight-through pinning at the RJ-45 connectors. The connectors are inserted
into hub ports labeled MDI-X. Which of the following is true?

The straight-through UTP must be replaced with a crossover.

Only the hubs will communicate, but not the workstations connected to them.

The hubs cannot be connected.

The hubs are properly connected.

Which of the following devices is used to pass data between different
network access protocols?

Bridge

Router

Hub

Brouter

Which of the following contains a transceiver that is used to send and
receive data frames on and off the network?

Gateway

Hub

Router

NIC

An Ethernet and a token ring LAN may be interconnected using a
_______.

repeater

transceiver

bridge

fiber cable

Which device is used to transfer packets between different
networks?

Bridge

Router

Repeater

MAU

A node on an Ethernet LAN at IP 196.168.50.50 needs to send a message to
a node on a token ring LAN at IP 172.16.24.72. Which of the following components
will handle the task?

Bridge

Repeater

Router

Hub

Which of the following is an advantage of using a dynamic
router?

It requires manual intervention.

It requires more administrative time.

It's easier to set up and configure.

It requires less administrative time.

An Ethernet frame is to be transported across the Internet using TCP/IP.
Which of the following is true?

IP addresses are discarded at each router.

IP addresses are updated at each router.

TCP is discarded at each router.

MAC addresses are updated at each router.

By interpreting baselines, you determine that the volume of traffic on
your network is reaching unacceptable levels. The network is a 10BASE-T system
with hubs. Which of the following upgrade paths are you most likely to
recommend?

Implement 100BASE-T by replacing all the network cards and hubs with 100Mbps devices.

Implement switches in place of the hubs.

Install a router to divide the network into two segments, thereby reducing the overall amount of network traffic.

Implement a bridge.

Which of the following is an end-to-end digital communication
path?

ISDN

PSTN

POTS

PPTP

A standalone computer may connect to an ISP using a _______.

patch panel

repeater

bridge

modem

In an ISDN channel, signaling information is contained in the
_______.

BRI

bearer channel

data channel

PRI

Which of the following best describes active hubs and repeaters?

Repeaters link network segments while active hubs do not.

Both active hubs and repeaters restore signals.

Repeaters restore signal integrity while active hubs do not.

Neither active hubs nor repeaters link network segments.

To directly connect the NIC cards in two personal computers, what's
needed?